'One day, I put a Big Mac in the CT scanner. It was just beautiful'

Satre Stuelke was in his first career as an artist teaching in Manhattan when "the trade centres got hit". He was 1,800 yards away. Soon after, he gave up teaching and enrolled in medical school - his second career.

Engrossed in a project of high-resolution imaging of the prostate, he suddenly "got the urge to make some really gorgeous images". He bought a TV dinner, defrosted it and put it in the MRI scanner, but the results were unexciting. Next he tried the CT scanner "and it was wonderful". So he scanned a Big Mac. "It was just a delicious, beautiful image. I'm still thinking of it in pathological terms," he says.

Next, he scanned his children's toys, including this bunny with "a blockage". But he isn't giving up medicine: he wants to go into radiology. It will be nine years before he has his own office and the two careers coalesce - with, he says, some of these scans on the wall.